Puka | |
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M. sinclairii in Manukau City | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Apiales |
Family: | Araliaceae |
Genus: | Meryta |
Species: | M. sinclairii |
Binomial name | |
Meryta sinclairii | |
Meryta sinclairii, the puka or pukanui, is a large-leaved evergreen tree endemic to New Zealand that grows to about 8 m tall, with the distinctly tropical appearance typical of the genus. There are about 27 species of Meryta , all small, resinous trees of the subtropical and tropical Pacific Ocean. [2]
Puka occurs naturally on the Three Kings Islands (c. 34°S, 172°W) and the Hen and Chickens Islands (c. 36°S, 175°W) where it occurs in greater abundance in the relatively sheltered valleys, where soils are thick and conditions are relatively moist, rather than on the exposed ridge-tops. However, puka can also grow on cliffs with shallow, stony soils which suggests some tolerance of drought. [3]
The elliptical, thick, leathery leaves may be up to 50 cm long and 20 cm wide with a glossy upper surface. They are the largest entire leaves in the New Zealand flora. The petioles (leaf stalks) may be up to 35 cm long. The tree produces panicles of green-white flowers followed by black berries. The leaves are densely crowded, twenty to thirty together at the tips of the branches, with a few large deciduous scales amongst the petioles of the youngest. [4]
When young, the puka grows straight up, but once it has flowered it tends to branch, typically forming a rounded crown. Puka's green-white flowers arise on erect terminal panicles up to 50 cm long from spring to autumn. The flowers are inconspicuous and ball-bearing sized fruit form only on the female plants (although occasionally bisexual flowers occur). The fruit is roundish-oblong, black, shining, slightly angled when young, becoming even as it approaches maturity; seeds 5, curved, much compressed, about three-eights of an inch in length, black, or dark-brown, intensely hard. Fruits take a year to mature, and as they begin to ripen to black, birds are attracted to them. [4]
The entire plant is more or less resinous, and the dark-brown bark has numerous warty excrescences and is easily wounded, producing large callosities as it heals. The wood is white and brittle. The branches are very stout, showing the scars of fallen leaves. The trunk is stout or slender, irregularly and sparingly branched. [4]
Puka first came to European attention when William Colenso found a single tree growing at the head of Whangaruru Bay in Northland (on the New Zealand mainland). This tree was protected by a fence, and declared sacred by Māori, who told Colenso that they had brought the tree from the Poor Knights Islands. Colenso made frequent visits to Whangaruru Bay over several years in the vain hope of procuring flowers and fruit. Colenso pointed out the tree to Dr Andrew Sinclair, (1794–1861), Colonial Secretary and naturalist, for whom the tree would eventually be named. Colenso and Sinclair sent specimens of the foliage to Kew. Later William Mair found the tree, and he eventually succeeded in procuring specimens of the leaves and fruit, which were forwarded to Dr Joseph Hooker at Kew. From these specimens the original description of the tree was made under the name Botryodendrum sinclairii. [5]
Kirk recorded in 1869 that puka was 'already established under cultivation', and today it is widely grown as a street tree and a garden specimen in northern New Zealand. The main method of propagation is from seed although cuttings may be taken with limited success. Puka grows well in full sun or light shade and is intolerant of frost, especially when young. Puka is sensitive to frost – leaves will suffer damage if the temperature drops below −2 °C, although it has been grown as far south as Dunedin in protected situations. Puka is wind tolerant, and is unaffected by salt spray and highly tolerant of coastal conditions. [6] Puka may be trimmed to contain its size and can be grown in large containers. It also makes an ideal indoor plant when young. Meryta sinclairii var. 'Moonlight' is a variegated form with very attractive[ according to whom? ] cream and yellow leaves. It is not as vigorous or as easy to grow as the wild form.
Puka may refer to:
Griselinia littoralis, commonly known as kapuka, New Zealand broadleaf or pāpāuma, is a fast-growing small to medium-sized evergreen tree that is native to New Zealand.
Griselinia is a genus of seven species of shrubs and trees, with a highly disjunct distribution native to New Zealand and South America. It is a classic example of the Antarctic flora. It is the sole genus in the family Griseliniaceae. In the past it was often placed in Cornaceae but differs from that in many features.
Karaka or New Zealand laurel is a medium-sized evergreen tree in the family Corynocarpaceae. It is endemic to New Zealand and is common throughout the North Island and less common in the South Island. Karaka are also found on the Chatham Islands, Kermadec Islands, and the Three Kings Islands. It is mostly a coastal tree, though in the North Island, it can also be found in lowland inland forests.
Eugenia luschnathiana is a flowering plant in the family Myrtaceae, native to the state of Bahia, Brazil. The fruit is known as pitomba-da-bahia, and is also called uvalha do campo, ubaia do campo or uvalheira in Brazil. It shares the name pitomba with another South American species, Talisia esculenta.
Meryta is a genus in the flowering plant family Araliaceae. There are 28 described species in the genus and a number of undescribed species, all small, resinous trees of the subtropical and tropical Pacific Ocean, characterized by huge, simple leaves and a dioecious sexual system, a unique combination in Araliaceae. Meryta has its center of diversity in New Caledonia. Phylogenetic analyses have placed Meryta as a monophyletic genus in one of the three major clades of the Araliaciae, the Polyscias-Pseudopanax group, and more specifically in the Pacific Schefflera subclade.
Meryta denhamii is an evergreen tree endemic to the Pacific island of New Caledonia, where it occurs in dense humid forest.
Schefflera digitata, the patē, seven-finger, or umbrella tree, is a tree endemic to New Zealand belonging to the family Araliaceae. Māori names include: patē, patatē, patete, and kōtētē. It occurs in lowland to lower montane forests from sea level to 1,200 m (3,900 ft) in the North Island, South Island, and Stewart Island, covering a latitudinal range from 34°S to 47°S. It prefers damp, shady parts of the forest and is common along stream banks and on shady forest roadsides. It is the only New Zealand representative of the genus Schefflera, which has 12 other species on the Pacific islands.
Elingamita is a genus in the plant family Primulaceae. It consists of a single species, Elingamita johnsonii, a tree or shrub endemic to the Three Kings Islands approximately 55 km north of the North Island of New Zealand. The entire world natural population of the tree is confined to a small rocky island and two nearby islets, and thus is vulnerable to destruction by fire or other unforeseen events. Elingamita johnsonii grows as a shrub or small tree in pōhutukawa forest and coastal scrub on West island. It also occurs on two rocky islets of the Princes Group; on one of these islets, Hinemoa Rock, it grows as an emergent canopy tree in exposed places. The relationship of Elingamita to other genera of the Primulaceae remains to be properly established. Discovered in 1950, Elingamita johnsonii takes its name from the steamer Elingamite, which was wrecked on West Island in 1902. The natural range is currently free of rodents, but the fruit is known to be very palatable to rats.
Cordyline obtecta is a widely branching monocot tree native to Norfolk Island, and to northern New Zealand. The species name obtecta derives from the Latin obtegere, alluding to the way the inflorescence barely protruded beyond the leaves in the plant first described.
Pennantia baylisiana, commonly known as Three Kings kaikōmako or kaikōmako manawatāwhi (Māori), is a species of plant in the family Pennantiaceae. It is endemic to Manawatāwhi / Three Kings Islands, around 55 kilometres (34 mi) northwest of Cape Reinga, New Zealand. At the time of its discovery just one plant remained. This single tree grows on a scree slope inaccessible to browsing goats, and has been called "the world's loneliest tree". The species was discovered in 1945 by botanist Geoff Baylis and described in 1948, although it took decades before it was it was fully accepted as a distinct species of Pennantia. Although the only wild tree is female, it was successfully propagated from cuttings in the 1950s, one of which was induced to self-pollinate in 1985. Subsequent seed-grown plants have themselves set seeds, and the species has been replanted on the island, the adjoining mainland, and in public and private gardens around New Zealand.
Meryta latifolia, commonly known as broad-leaved meryta or shade tree, is an evergreen tree endemic to Norfolk Island, Australia, where it occurs in subtropical moist forest conditions.
Elaeocarpus dentatus, commonly known as hinau, is a native lowland forest tree of New Zealand. Other names in Māori for the tree are hangehange, pōkākā, and whīnau.
Parsonsia heterophylla, commonly called New Zealand jasmine or kaihua, is a climbing plant endemic to New Zealand. It was first described by Alan Cunningham in 1839.
Passiflora lindeniana is the largest free-standing tree species in the subgenus Passiflora subg. Astrophea.
Griselinia lucida, commonly known as puka, akapuka or shining broadleaf, is an epiphytic plant native to New Zealand. G. lucida naturally occurs in wet lowland-forests and open or rocky coastal environments mostly in the North Island of New Zealand, and restricted areas of the South Island.
Acrothamnus colensoi, also known as Colenso's mingimingi or mountain heath, is a species of plant in the family Ericaceae endemic to New Zealand. It is a small shrub that grow to approximately 50 cm tall, and can spread to form mounds of up to 2 m across. Fruit are round and are white, pink or dark red in colour. It can be found in both the lower North and eastern South Islands, in scrubland, tussock grassland, and rocky fellfield.
Jovellana sinclairii, commonly known as the New Zealand calceolaria, is an endemic New Zealand shrub found in eastern and central North Island forests. In the family Calceolariaceae, it has white, bell shaped flowers with spots of purple on the inside.
Kunzea sinclairii, also known as the Great Barrier Island kānuka, is a flowering plant in the myrtle family, Myrtaceae and is endemic to Great Barrier Island in the Auckland Region, New Zealand.
Epacris sinclairii, also known as Sinclair's tamingi, is a plant species in the family Ericaceae. The species is endemic to New Zealand, found exclusively on Great Barrier Island and the Coromandel Peninsula.